By determining RCM based maintenance strategies before production kicked off - AngloGold Ashanti has avoided potential delays and costs down the track.
AngloGold Ashanti is one of the world's leading gold mining companies, with operations spread across 10 countries. In 2010, AngloGold Ashanti began work on the Tropicana Gold Project near Kalgoorlie, Western Australia.
Tropicana's gold deposits stretch across 300km of an ancient collision zone, and the area promises fertile ground for the mining giant. It is slated to produce 3.45 million ounces of gold over a 10 year mine life at a cash cost of between A$710-A$730/oz. In the first three years of its operation, gold production will be between 470,000- 490,000 ounces per annum at a cash cost of A$580-A$600/oz.
To cope with the expected in-flux of raw materials, Tropicana's processing plant will process 5.8 million tonnes of fresh ore per annum. It's comminution circuit comprises of two-stage crushing, high pressure grinding rolls and ball milling, followed by a carbonin-leach circuit for gold recovery.
Tropicana boasts a gold-standard setup that needs a premium maintenance plan - which is why ARMS Reliability was brought in. The ARMS Reliability team developed maintenance strategies for more than 300 assets, with full RCM studies and a live RCM model implemented for each to enable ongoing updates and continuous improvement.
Drawing on almost 70 years in the mining industry, AngloGold Ashanti is a leader when it comes to best practice procedures and methodologies for setting up new mines. When the Tropicana opportunity arose, it sought to set the mine and processing plant up in the most efficient and reliable way possible.
From accurate predictions around spare parts usage, to the creation of critical maintenance schedules, ARMS Reliability has completed thorough RCM analyses of all assets within the Tropicana processing plant. By having these analyses prior to commissioning the plant, AngloGold Ashanti are ready for action.
"The ARMS Reliability team liaised with suppliers, operations and project team members in order to develop the reliability models, maintenance strategies and projected spares requirements; and to create a first pass forecast of maintenance costs for the project."
Now, AngloGold Ashanti's processing plant is ready for anything. Their operations and maintenance teams can continually build on these maintenance strategies using live data - to continuously improve and enhance them, and greatly improve the overall performance of the plant.